TWI635848B - Wearable apparatus with a stretch sensor - Google Patents

Abstract

Embodiments of the present invention provide techniques and configurations for wearable sensor devices. In one aspect, the device includes a flexible substrate and a conductive fabric component that includes a first length and is attachably attachable to the flexible substrate. In response to direct or indirect application of an external force to the flexible substrate, the electrically conductive fabric component can be stretched between the first length and a second length that is greater than the first length, and at least in part based on the application The amount of external force produces an electrical parameter. Other embodiments may describe and/or claim the rights.

Description

Wearable device with telescopic sensor

Embodiments of the present invention generally relate to the field of sensor devices, and more particularly to wearable sensing systems having telescopic sensors that are conformable to the human body.

Wearable sensing devices or systems are becoming increasingly popular as advances in various technologies. Wearable sensing systems may need to be comfortably attached to the human body, and may measure and quantify the expansion, strain, or/or expansion of the human body and/or different parts of the human body such as joints, wrists, fingers, ankles, knees, and the like. bending. However, existing sensors for monitoring telescoping, strain, bending, and the like may have limited ability to effectively sense around the movable point of the human body. Moreover, existing sensors may be expensive, may have limited capabilities for integration into the wearable device, may be fragile or prone to breakage, or may provide limited accuracy.

100‧‧‧Wearing sensor device

102‧‧‧ conformal ontology

104,106‧‧‧ Sensor

108,110‧‧‧Inertial Measurement Unit (IMU)

112‧‧‧ User's body

114‧‧‧Wiring

116‧‧‧IMU wiring

132,1002‧‧‧ processor

134‧‧‧ memory

140‧‧‧Processing unit

142‧‧‧Sensor front end module

144‧‧‧Electronic circuit

150‧‧‧ interface

154‧‧‧Battery

156‧‧‧ radio

158‧‧‧Other components

160‧‧‧ Telescopic sensor

184‧‧‧External devices

192‧‧‧ digital nodes

200‧‧‧ top view

202‧‧‧Conductive fabric components

204,206‧‧‧Electrical contacts

208,210‧‧‧Flexible substrate

260‧‧‧ side view

280‧‧‧implementation

300‧‧‧ circuits

U8B‧‧Amplifier

400‧‧‧ graphics

500‧‧‧Conformal motion sensing system

502‧‧‧Knee straps

602,720‧‧‧Multi-wire busbar

702,704‧‧‧ wire

706‧‧‧Printed circuit board (PCB)

710,712‧‧‧Flexible EMG electrodes

714,716‧‧‧Wire welding area

718,730‧‧‧ Backing material

722,724,726‧‧ points

740‧‧‧Substrate

900‧‧‧Process

902-912‧‧‧

1000‧‧‧ computing device

1004‧‧‧ system memory

1006‧‧‧Main storage device

1008‧‧‧Input/Output (I/O) devices

1010‧‧‧Communication interface

1012‧‧‧System Bus

1022‧‧‧ Calculation logic

The embodiment will be immediately described by the following detailed description together with the accompanying drawings. solution. To facilitate this description, the same reference characters designate the same structural elements. The embodiments are illustrated by way of example and not limitation in the drawings.

1 is a block diagram depicting an example wearable sensor device in conjunction with the teachings of the present invention in accordance with some embodiments.

2 is a schematic diagram depicting an example telescopic sensor that can be used in a wearable sensor device in accordance with some embodiments.

3 is a schematic diagram of an example implementation of a circuit in accordance with some embodiments configured to process readings provided by a telescopic sensor of a wearable sensor device.

Figure 4 is a graph of an embodiment depicting the output of the telescopic sensor as a function of the applied external force.

5 through 8 depict different views of an example wearable sensor device 100 including a conformal motion sensing system in accordance with some embodiments.

Figure 9 is a process flow diagram in accordance with some embodiments for assembling a wearable sensor device such as a conformal (e.g., wearable) motion sensing system.

10 depicts an example computing device 1000 that is suitable for use with various components of FIG. 1 and/or 5 through 8 of a wearable sensor device including a conformal motion sensing system, in accordance with various embodiments. use together.

SUMMARY OF THE INVENTION AND EMBODIMENT

Embodiments of the invention include techniques and configurations for wearable sensor devices. According to the pattern of the embodiment, the device may comprise a flexible substrate and a conductive A fabric component, the electrically conductive fabric component comprising a first length and which is attachably attachable to the flexible substrate. In response to direct or indirect application of an external force to the flexible substrate, the electrically conductive fabric component can be stretched between the first length and a second length that is greater than the first length, and at least in part based on the application The amount of external force produces an electrical parameter.

In the following detailed description, reference is made to the accompanying drawings in the claims It is understood that other embodiments may be utilized and structural or logical changes may be made without departing from the scope of the invention. Therefore, the following detailed description is not to be taken in a

For the purposes of the present invention, the terms "A and/or B" mean (A), (B), (A) or (B), or (A and B). For the purposes of the present invention, the terms "A, B, and/or C" mean (A), (B), (C), (A and B), (A and C), (B and C). , or (A, B, and C).

The description may use instructions such as top/bottom, in/out of, above/below, and the like. The descriptions are used to make the discussion easy, and are not intended to limit the application of the embodiments described herein to any particular orientation.

The wording "in the embodiment" or "in the embodiments" may be used, each of which may mean one or more of the same or different embodiments. Furthermore, the terms "comprising," "comprising," "having," or <RTIgt; </ RTI> <RTIgt; </ RTI> as used in relation to the embodiments of the present invention are synonymous.

The term "coupled with" in its derivatives may be used herein. "Coupled" may mean one or more of the following. "Coupled" may mean that two or more elements are in direct physical, electrical, or optical contact. However, "coupled" may also mean that two or more elements are in indirect contact with each other, but still interact or interact with each other, and may mean that one or more other elements are coupled. Connected or connected between elements that are said to be coupled to each other. The term "directly coupled" may mean that two or more elements are in direct contact.

1 is a block diagram depicting an example wearable sensor device 100 in conjunction with the teachings of the present invention in accordance with some embodiments. The device 100 can include a conformal body 102 (including, for example, a flexible substrate indicated by a dashed dotted line) that is configured to be attached to a user's body 112 for conduction to the user's body 112 and user activities. The function is associated with the measurement. In an embodiment, the conformal body 102 can take on different shapes and/or sizes, such as fastening straps, straps, or the like, to conform to different portions of the user's body 112. The conformal body 102 can be made of an elastic fabric, an elastomer, a polymer, or other suitable material.

The device 100 can include a telescoping sensor 160 disposed on the conformal body 102 and configured to provide electrical parameters generated by the telescoping detector 160 in response to expansion and contraction that can be caused by external forces. measuring. In certain embodiments, the telescoping sensor 160 can include a conductive fabric-based sensor that is configured to provide a sensor 160 in response to, for example, application of a force other than bending of the knee or arm. A reading of the resistance parameter that can be generated. An embodiment of the telescopic sensor 160 will be described with reference to Figures 2 through 4. To narrate.

Device 100 can further include a plurality of sensors 104, 106 that can be disposed about a conformal body 102 that will be in contact with the user's body 112. For example, the sensors 104, 106 can be placed inside or outside the flexible substrate including the conformal body 102 to enable measurements associated with the user's body 112. In some embodiments, the sensors 104, 106 can be built into a flexible substrate of a conformal body 102 (eg, embedded, pasted, and the like). The sensors 104, 106 can provide readings for a wide variety of user body functions. For example, the sensors 104, 106 may include, but are not limited to, an electromyography (EMG) sensor, a temperature sensor, a sweat chemical sensor, a motion sensor, an optical light emitting diode, an electrocardiogram (ECG) electrodes, skin electrical response (GSR) sensors, piezoelectric crystals, pressure sensors, or the like.

It should be noted that the sensors 104, 106, 160 are shown in FIG. 1 for purposes of illustration only and do not limit the implementation of the device 100. It will be understood that any number or type of sensors can be used in device 100.

The apparatus 100 can further include one or more inertial measurement units (IMUs) 108 and 110 disposed about the conformal body 102 and configured to provide motion related measurements associated with the user's body 112. The arrangement of the IMUs 108 and 110 around the conformal body 102 will be discussed in detail with reference to Figures 5-8.

The device 100 can further include a sensor front end module 142 that can be electrically coupled to the sensors 104, 106, and 160. Sensor front end module 142 A printed circuit board (PCB) can be included and can be disposed on a flexible substrate comprising a conformal body 102. In an embodiment, the sensor front end module 142 can be disposed on an outer side of the flexible substrate including the conformal body 102.

The sensor front end module 142 can include electronic circuitry 144 that is configured to receive and process the readings provided by the sensors 104, 106, and 160. The circuit 144 can be further configured to provide power and excitation to the sensors 104, 106 (as needed), to convert the sensor signals into voltages, to amplify and define the sensor signals. An example application of the circuit 144 for reading and processing signals from the telescopic sensor 160 will be described with reference to FIG.

The sensor front end module 142 (eg, circuit 144) can be electrically coupled to the sensors 104, 106, and 160 via the wiring 114. The wiring 114 can include wires for electrically connecting the individual sensors to the sensor front end module 142.

An IMU (e.g., IMU 108) of device 100 can be integrated into a PCB that provides sensor front end module 142 or digital node 192 (described below). An IMU (eg, IMU 110) can be disposed in other components of the conformal body 102, for example, at a distance from the sensor front end module 142. As shown, the IMU 110 can be electrically coupled to the sensor front end module 142 via the IMU wiring 116. The IMU wiring 116 can be configured as a plurality of wiring connections that include a multi-wire bus bar for carrying power signals, ground, and data signals provided to the IMU 110. Wiring 114 and IMU wiring 116 can be established (e.g., embedded, embroidered, woven, stamped, and the like) in a flexible substrate of conformal body 102.

The device 100 can further include a digital node 192 that can be mechanically and electrically coupled to the sensor front end module 142. For example, the sensor front end module 142 can include an interface 150 (eg, an electrical connector such as a multi-pin contact) to provide mechanical and electrical coupling to the digital node 192. The digital node 192 can be configured to further process the readings provided by the sensors 104, 106, 160 and the IMUs 108 and 110.

In some embodiments, the digital node 192 can include a processing unit 140 having a processor 132 that is configured to process the readings (signals) provided by the sensors 104, 106, 160. Processing unit 140 may include memory 134 with instructions that, when executed on top of processor 132, may cause processor 132 to perform signal processing. The digital node 192 can include a battery 154 that is organized in a logarithmic node 192 and, more generally, provides power to components of the device 100. The digital node 192 can include a radio 156 for transmitting processed data generated by the processing of the sensor readings to, for example, an external device 184 (e.g., an active or fixed computing device) for further processing. The digital node 192 can include a mating connector (not shown) for mating with the interface 150 of the sensor front end module 142.

Digital node 192 can include other components 158 necessary for the functionality of device 100. For example, other components 158 can include a communication interface to enable device 100 to communicate over one or more wired or wireless networks, and/or to communicate with any other suitable device, such as external device 184.

In summary, the digital node 192 can be configured to supply power to the sensor front end module 142, the sensors 104, 106, 160, and the IMU 108, 110, and the implementation of data acquisition, processing, and transmission. Digital node 192 can be further configured to perform signal denoising, feature extraction, classification, data compression, and wireless transmission of signals sensed over a network (e.g., a local wireless network, not shown).

2 is a schematic diagram depicting an example telescopic sensor that can be used in a wearable sensor device in accordance with some embodiments. More specifically, FIG. 2 depicts a top view 200, a side view 260, and an implementation 280 of a telescopic sensor such as the sensor 160 described with reference to FIG. The described embodiment can utilize a conductive fabric as a telescopic sensing device, as explained below.

As is known, conductive fabrics can be used in flexible shielding systems for shielding electronic components from electromagnetic interference, in electronic textiles, and the like. Some conductive fabrics (eg, Medtex 180, which is made of silver coated nylon) can also be used in medical applications for bandages due to their antimicrobial properties. Certain conductive fabrics, such as Medtex 180, can exhibit reproducible changes in their electrical characteristics (eg, electrical resistance) in response to expansion and contraction that can result from the application of external forces.

The electrically conductive fabrics exhibit a change in electrical resistance with a relatively limited dynamic range before they are saturated. For example, conductive fabrics can stretch about 10% of their original length to achieve a corresponding (eg, proportional) change (eg, increase) in electrical resistance before they are saturated. In other words, if the fabric stretches more than about 10% of their original length, the conductive fabric resistance can be maintained constant. Conductive fabrics can also exhibit deformation (creep) when they are stretched beyond a certain limit, for example, beyond about 20% of their original length.

The described embodiment provides for dissipation of force applied to the conductive fabric to prevent the conductive fabric from stretching beyond a certain length that can correspond to saturation, for example, more than 10% of its original length. The size of the dissipation can define the limit of force that can be applied to the conductive fabric. Therefore, the external force can be measured within the determined range of the expansion and contraction of the conductive fabric using the stretchability of the conductive fabric.

For example, if mounted on a flexible substrate such as a flexible substrate having a determined elasticity, for example, a suitable thickness of fluorenone rubber or latex, the conductive fabric can be used as a resistive stretch transducer. This method provides force measurement for the desired range via force dissipation and can reduce creep by using the elastic properties of the flexible substrate.

Referring to FIG. 2, the sensor 160 can include a determined length of conductive fabric component 202. As described above, the conductive fabric component 202 can assume the role of a resistive telescopic sensor when its resistance changes (eg, increases) in response to expansion and contraction of the conductive fabric component 202. For example, the electrical resistance of the electrically conductive fabric component 202 in the unstretched condition can be about 10 ohms and can be increased to 12 ohms in response to expansion and contraction.

The electrically conductive fabric component 202 can include electrical contacts 204, 206 that can be disposed about individual end points of the electrically conductive fabric component 202 as shown to provide telescopic sensing in response to telescoping of the electrically conductive fabric component 202 A reading of the electrical parameter (eg, resistance) produced by 160. In an embodiment, the electrical contacts 204, 206 may comprise an adhesive copper foil, a conductive lacquer, a conductive paste, or the like. Conductive wirings A and B can be used to provide electrical connections to electrical contacts 204, 206, for example, by soldering or borrowing Electric glue. The change in resistance between wires A and B can be converted to a (e.g., proportional) voltage output by circuit 144, which will be described in detail with reference to FIG.

The electrically conductive fabric component 202 can be disposed (e.g., attachably mounted) on a flexible substrate 208 having a determined (first) thickness. The flexible substrate 208 can be adhesively mounted on another flexible substrate 210 of a determined (second) thickness. The first thickness of the flexible substrate 208 can be greater than the second thickness of the flexible substrate 210. Substrates 208 and 210 can comprise an elastomer (eg, an anthrone elastomer), a polymer, and the like. External force F can be applied to flexible substrate 208 (and, correspondingly, to conductive fabric component 202), either directly or indirectly (eg, via substrate 210, as shown). In response to direct or indirect application of force F to flexible substrate 208, conductive fabric component 202 can be stretched between a determined (first) length and a second length greater than the first length, and in accordance with the orientation shown The applied external force F produces an electrical parameter (eg, electrical resistance). In an embodiment, the electrical parameters (eg, electrical resistance) produced may be proportional to the applied external force F.

The desired portion of the telescopic external force F can be dissipated by causing expansion and contraction of the thinner substrate 210. The thicker substrate 208 can be stretched and contracted by a fraction of the total elongation (elasticity) of the thinner substrate 210. The conductive fabric component 202 is mounted on the thicker substrate 208 and can accept the desired expansion and contraction (e.g., about 10% of its length) due to the relatively large external force F applied to the substrate 210. Thus, the conductive fabric component 202 can be prevented from being saturated by the substantial external force F.

The measurement range of the force F by the telescopic sensor 160 can be made by the substrate The relative thicknesses of 208 and 210 are controlled, for example, by the thickness ratio of substrates 208 and 210. The sensitivity of the telescopic sensor 160 and its dynamic range can be adjusted to the desired level by selecting the desired relative thickness (e.g., ratio) of the substrates 208 and 210. The greater the relative thickness, the greater the dynamic range of the measurement and the less sensitive the telescopic sensor 160 is.

As described above, the conductive fabric component 202 can be mounted on a flexible substrate 208 that can be mounted on the flexible substrate 210. Both of the substrates 208, 210 can comprise an elastomer having the desired elasticity. Thus, the substrates 208, 210 can recover their original shape and length substantially immediately after the expansion and contraction external force F is removed. In turn, the conductive fabric component 202 can also be forced to return to its original length to reduce or eliminate creep. The thickness of the flexible substrate 208 ensures that the conductive fabric component 202, in a practical application such as the wearable sensor device of the device 100 using a telescopic sensor, responds to an external force F that can be applied while maintaining the desired expansion and contraction. Within the scope of sex (for example, not scalable beyond 10% of its original length).

Compared to the solution of the conventional wearable sensor device, the wearable sensor device having the telescopic sensor as described above can provide a number of advantages. For example, the telescopic sensor 160 described can be formed according to the thickness of the flexible substrate 208, 210 by a desired (eg, relatively small) forming factor such as about 10 mm (mm) x 20 mm x 3 mm. The contour and weight of the desired are achieved. Thus, the telescoping sensor 160 can be integrated into a small wearable device such as a wristband of a wristwatch. The described telescoping sensor 160 can conform to the shape of the user's body and can be adapted for use with a variety of wearable devices such as wearable or smart apparel. In Ruo In a dry example, a plurality of wearable sensor devices configured with the above-described telescopic sensor can be applied to a user's body to form a body area network, enabling a host of different applications.

Further, the telescoping sensor 160 feature can be highly repetitive and stable over a desired period of time because the sensor 160 can be configured to substantially immediately restore its original size, shape, and resistance, and substantially There is no creep in the ground. Moreover, the dynamic range and sensitivity of the telescopic sensor can be adjusted by selecting the thickness of the substrates 208 and 210. Moreover, the above-described telescopic sensor 160 may require a lower power supply than known conventional telescopic sensors.

3 is a schematic diagram of an example implementation of a circuit in accordance with some embodiments configured to process readings provided by a telescopic sensor of a wearable sensor device. More particularly, the schematic diagram of FIG. 3 can provide a circuit 300 that includes at least some embodiments of the circuitry 144 of the apparatus 100 of FIG. In an embodiment, the telescoping sensor 160 can be coupled to the circuit 300 at input points A, B corresponding to wires A and B of FIG.

As described above, a change in the resistance of the telescopic sensor 160 can occur when the conductive fabric component 202 is stretched. Input points A and B and resistor R39 form a resistor divider circuit coupled to electrical contacts 204, 206 for generating a voltage that is responsive to a change in resistance caused by expansion and contraction of conductive fabric assembly 202. The voltage divider circuit can be excited by a direct current (DC) voltage source Vsensor_AFE. A change in resistance causes a voltage change at point A that is fed to the input of amplifier U8B that is coupled to the resistor divider circuit. When the resistance of the fabric component of the telescopic sensor 160 is changed, it will be in the amplifier A corresponding (eg, proportional) voltage change is caused at the input of U8B. Amplifier U8B can be configured to receive the generated voltage and to provide an output voltage signal corresponding to (e.g., proportional to) the telescoping of conductive fabric component 202. Resistors R43 and R41 can be used to set the gain (magnification) of the voltage depending on the application of device 100. 1V2 can be applied to the reference voltage of R41. Components C41, R43, and R42, C40 form a low-pass filter to remove high frequency noise and preserve low frequency stretch signals. The cutoff frequency of the filters can be selected based on the application of device 100. The output signal PO_3_AFE includes a signal corresponding to (e.g., proportional to) the telescoping of the sensor 160 and can be coupled to an input of an ADC (not shown) for digitization and further processing.

Figure 4 is a graph of an embodiment depicting the output of the telescopic sensor as a function of the applied external force. More specifically, the graphic 400 depicts the output (eg, resistance) of a telescoping sensor used in an application for a wearable knee strap as described below. As shown, the sensor output provides substantial linear dependence from the applied external force in the knee bending angle. The telescopic sensor can be calibrated to measure external forces within the required range. In Figure 4, the required force measurement range corresponds to the knee angle range. Thus, the telescoping sensor can be calibrated to measure the knee bending angle over a desired angular range while providing a substantially linear curve 402. As noted above, this calibration can be accomplished by the selection of the relative thickness (e.g., ratio) of the flexible substrates 208, 210 (Fig. 2). In an alternate embodiment, the sensor output can provide a non-linear response to an applied force.

Referring to the wearable sensor device described in Figures 1 to 3 (for example, The device 100 with the telescopic sensor 160 can be used in a variety of applications. For example, device 100 can include a wearable conformal motion sensing system that can be used, for example, in rehabilitation of joints (eg, physical therapy), athletic applications, and the like. The conformal motion sensing system can be wrapped around different parts of the user's body, such as the chest, knees, wrists, neck, and the like.

5 through 8 depict different views of an example wearable sensor device 100 including a conformal motion sensing system in accordance with some embodiments. For example, the conformal motion sensing system can be used on any of the human joints in conjunction with a knee strap, an ankle cap, a vest, a garment (eg, a tight garment), or the like.

FIG. 5 depicts a conformal motion sensing system 500 mounted (eg, removably attached) on a knee strap 502. The conformal motion sensing system 500 can include components of the device 100. For example, the conformal motion sensing system 500 can include a flexible substrate 102. As shown, the conformal body 102 can include a conformable strap that can receive components of the device 100. More specifically, the conformal body 102 can house the telescopic sensor 160, other sensors (eg, 104, 106), IMU wiring (shown in FIG. 6), the digital node 192, the IMU 110, the wiring 114, Sensor front end module 142, and IMU 108 (not visible in Figure 5). To measure joint motion, the conformal motion sensing system 500 can be configured such that the IMUs 108 and 110 can be placed on either side of the joint.

As described with reference to FIG. 1, a digital node 192 that integrates computing components, radios, and batteries for powering components of the conformal motion sensing system 500 can be via interface 150 (eg, a connector, not shown). Department System 500 is coupled.

Figure 6 depicts a conformal motion sensing system 500 that is separated from a knee strap in accordance with some embodiments. As shown, the IMU wiring 116 electrically connected to the IMU 110 and the sensor front end module 142 (not shown) can include a multi-wire bus bar 602 having a meandering disposed on the inside of the conformal body 102 (eg, Sinusoidal, zigzag) pattern.

Figures 7 and 8 depict example diagrams of a conformal motion sensing system including a telescoping sensor, in accordance with some embodiments. In particular, FIG. 7 depicts an example configuration of a conformal motion sensing system 500, and FIG. 8 depicts an example implementation of a conformal motion sensing system 500. The following description refers to a reference to the components of FIG. 1 when the components of FIG. 1 can be implemented in the example conformal motion system 500.

Referring to Figures 7 and 8, the substrate 740 forming the conformal body 102 can be fabricated on a substrate elastic substrate (e.g., anthrone rubber or a latex film) and then overlaid by a thin elastomer sheet. The layers are covered and sealed from all sides as described below. FIG 1 corresponds to a first electrical wiring between the different components on the substrate 114 of the connector 740 may comprise a thin Teflon ^® insulated stranded conductors 702, 704.

The PCB 706 can include a sensor front end module 142 having a circuit 144 and an interface connector 150 of a digital node 192 and can be mounted on the substrate 740 on a backing material. The sensors 104, 106 can include flexible EMG electrodes 710, 712 that can be bonded to the substrate 740 and wire bonded using, for example, a conductive glue or a solderable copper strip. The wire bonding regions can be indicated by symbols 714, 716. Telescopic sensor 160 based on conductive fabric It can be adhered to the substrate 740 on the backing material 718, soldered and connected to the PCB 706.

The substantially triangular shape of the conformal body 102 and the backing material 718 beneath the telescoping sensor 160 can be provided to dissipate excessive stretching force on the telescoping sensor 160, thereby preventing the telescopic sensor 160 from being stretched. saturation. In an embodiment, the backing material 718 can correspond to the flexible substrate 208, and the substrate 740 can correspond to the flexible substrate 210 of FIG.

As shown, the IMU 110 can be mounted on the backing material 730 near the end of the substrate 740. The PCB 706 can be powered to the IMU 110. The readings (data signals) from the IMU 110 can be routed back to the PCB 706 for processing by the digital node 192 and for further transmission. As noted above, system 500 can be worn on the user's body, for example, on the knee. When the knee system is fully bent, the distance between the PCB 706 and the IMU 110 can be increased to greater than 50% of the original distance (eg, before the body 102 is telescoping). To withstand this scaling, a multi-wire busbar 720 (corresponding to the IMU wiring 116) that is configured to carry power, ground, and signal lines can be used. The bus 720 may be used Teflon ^® coated wire, and may be sinusoidal as shown in FIG meander pattern 740 is laid on the substrate. The busbar 720 can be anchored (e.g., adhered) to the substrate 740 at a plurality of points as indicated by the symbols 722, 724, 726. When made an internal electrical connection, another (eg, thinner) flexible substrate (eg, an elastomeric sheet, not shown) can be placed on top of the substrate 740 to form a conformal body 102 and ultimately The fully assembled conformal motion sensing system 500 is formed. For example, the overlying elastomer sheet and base substrate can be sealed around the perimeter using a stretchable adhesive.

Figure 9 is a process flow diagram in accordance with some embodiments for assembling a wearable sensor device such as a conformal (e.g., wearable) motion sensing system. Process 900 can be consistent with several device embodiments described with reference to Figures 1-8. In an alternate embodiment, process 900 can be implemented with more or fewer operations, or in a different order of operations.

Process 900 can begin at block 902 and includes placing a telescopic sensor (e.g., 160) on a substrate comprising a conformal body 506 of a conformal motion sensing system. The telescoping sensor can include a flexible substrate and a conductive fabric component that includes a first length and is attachably attachable to the flexible substrate, as discussed with respect to Figures 2 through 3. In response to direct or indirect application of an external force to the flexible substrate, the electrically conductive fabric component can be stretched between the first length and a second length that is greater than the first length, and at least in part (eg, The electrical parameter is generated in proportion to the amount of external force applied.

At block 904, process 900 can include setting a digital node on a substrate comprising a conformal body of the wearable system. The setting of the digital node on the substrate can include mounting a printed circuit board (PCB) on the substrate, the PCB including an interface connector 150 of the digital node 192, as described with reference to Figures 1 and 7-8.

At block 906, the process 900 can include providing a connection path between the telescopic sensor and the digital node, and communicatively coupling the digital node and the telescopic sensor to enable the power provided by the telescopic sensor Reception and processing of sexual parameters. The connection path may include reference to figures 1 and 7 to 8 The wiring 114 is described.

At block 908, the process 900 can include disposing one or more sensors on the substrate, which can include providing a connection path between the interface connector of the parity node and the one or more sensors for enabling The reception and processing of the measurements provided by the one or more sensors. The sensors can include sensors 104 and 106, and the connection path can include the wiring 114 of FIG.

At block 910, process 900 can include setting one or more inertial measurement units (IMUs) around the conformal body and providing a wiring connection path between the IMU and the PCB to enable receipt of measurements provided by the IMU And processing. The IMU can include the IMUs 110 and 108 of Figure 1. The connection path may partially include the IMU wiring 116 and the wiring 114 of FIG.

At block 912, process 900 can include providing circuitry (eg, 142 of FIG. 1) for receiving and processing a reading of an electrical parameter provided by the telescoping sensor, including setting the circuit in the PCB or The digital node is communicatively coupled to the circuit and the digital node.

10 depicts an example computing device 1000 that is suitable for use with a wearable sensor device 100, such as FIG. 1, and/or a conformal motion sensing system 500, as shown in FIGS. 5-8, in accordance with various embodiments. The various components of Figure 1 and/or Figures 5 through 8 are used together. In some embodiments, various components of the example computing device 1000 can be used to fabricate the digital node 192. In some embodiments, various components of the example computing device 1000 can be used to fabricate the external device 184. As shown, computing device 1000 can include one or more processors or processor cores 1002 and system memory 1004. For the purpose of including this application for the scope of the patent application, unless The text explicitly requires that the terms "processor" and "processor core" may be considered synonymous. The processor 1002 can include any type of processor, such as a central processing unit (CPU), a microprocessor, and the like. The processor 1002 can be implemented as a multi-core integrated circuit, such as a multi-core microprocessor. The computing device 1000 can include a primary storage device 1006 (such as a solid state device, volatile memory (eg, dynamic random access memory (DRAM)), and the like). In general, system memory 1004 and/or primary storage device 1006 can be any type of temporary and/or permanent storage, including but not limited to volatile and non-volatile memory, optical, magnetic, and/or Or solid state primary storage, and the like. Volatile memory can include, but is not limited to, static and/or dynamic random access memory. Non-volatile memory can include, but is not limited to, electrically erasable programmable read-only memory, phase change memory, resistive memory, and the like. System memory 1004 and/or primary storage device 1006 can include individual copies of programming instructions that are organized to perform operations associated with digital node 192, for example, collectively represented as computing logic 1022.

The computing device 1000 can further include an input/output (I/O) device 1008 (such as a display, a soft keyboard, a touch sensitive screen, an image capture device, and the like), and a communication interface 1010 (such as a network interface card, Data machine, infrared receiver, radio receiver (eg, Near Field Communication (NFC), Bluetooth, WiFi, 4G/5G LTE), and the like).

The communication interface 1010 can include a communication chip (not shown) that can be configured to operate in accordance with Global System for Mobile Communications (GSM), General Packet Radio Service (GPRS), Universal Mobile Telecommunications System (UMTS), and high speed packet access. (HSPA), Evolved HSPA (E-HSPA), or Long Term Evolution (LTE) network, and operating device 1000. The communication chips can also be configured to be based on GSM Enhanced Data Evolution (EDGE), GSM EDGE Radio Access Network (GERAN), Universal Terrestrial Radio Access Network (UTRAN), or Evolved UTRAN (E-UTRAN). And the operation. The communication chips can be organized to be based on code division multiple access (CDMA), time division multiple access (TDMA), digital enhanced wireless telecommunications (DECT), evolved data optimization (EV-DO), derivatives thereof, And operate as any other wireless protocol designated as 3G, 4G, 5G, and above. The communication interfaces 1010 can operate in accordance with other wireless protocols in other embodiments.

In an embodiment, computing device 1000 can be associated with wearable sensor device 100 or system 500 via, for example, communication interface 1010. In some embodiments, the device 100 or the system 500 can include a telescopic sensor 160 coupled to the sensor front end module 142 and the digital node 192, the sensors 104, 106, and the IMU 110, and can be implemented The external device 184 of the computing device 1000 described herein is communicatively coupled.

The components of computing device 1000 described above may be coupled to one another via system busbars 1012, which may represent one or more busbars. In the case of multiple busbars, they may be coupled by one or more busbar bridges (not shown). Each of these elements can perform its conventional functions in the art. In particular, system memory 1004 and primary storage device 1006 can be used to store working and permanent copies of programming instructions implemented by operations of digital node 192, such as image 1 of FIG. 1, associated with wearable sensor device 100. . These components can be processed by a processor The combined instructions supported by 1002, or compiled into higher-level languages of the instructions, are implemented.

The permanent copy of the programming instructions of the computing logic 1022 can be in the factory, or in the workplace through, for example, a distribution medium such as a compact disc (CD) (not shown), or through the communication interface 1010 (from the distribution server (not shown) ), and is placed within the permanent storage device 1006. That is, one or more distribution media having an implementation of an agent can be used to distribute the agent, and to program a wide variety of computing devices.

The number, capabilities, and/or capacity of the elements 1008, 1010, 1012 can be based on whether the computing device 1000 is being used as a fixed computing device such as a set-top box or desktop computer, or such as a tablet computing device, knee It varies with the mobile computing device of a supercomputer, game console, or smart phone. Their construction is otherwise known and, therefore, will not be further described.

At least one of the processors 1002 can be packaged with a memory having computing logic 1022 that is configured to implement the views of the embodiments described with reference to Figures 1-8. For an embodiment, at least one of the processors 1002 can be packaged with memory having computing logic 1022 to form a system in a package (SiP) or a system on a wafer (SoC). For an embodiment, the SoC can be used, for example, but not limited to a computing device such as external device 184 of FIG. In another embodiment, the SoC can be used to form the digital node 192 of Figure 1.

In various implementations, computing device 1000 can include a laptop, a small notebook, a notebook, a super laptop, a smart phone, a tablet, Personal Digital Assistant (PDA), Super Mobile PC, mobile phone, or digital camera. In further implementations, computing device 1000 can be any other electronic device that processes data.

Example 1 is a device comprising: a flexible substrate; and a conductive fabric component comprising a first length and attached to the flexible substrate, wherein the direct force in response to the external force to the flexible substrate Indirect application, the electrically conductive fabric component stretches between the first length and a second length that is greater than the first length and produces an electrical parameter based, at least in part, on the amount of the applied external force.

Example 2 can include the subject matter of Example 1, wherein the flexible substrate is a first flexible substrate, wherein the device further comprises a second flexible substrate, wherein the first flexible substrate is attachably mounted to the second flexible substrate On the substrate, the external force is applied to the second flexible substrate.

Example 3 can include the subject matter of Example 2, wherein the first flexible substrate comprises a first thickness and the second flexible substrate comprises a second thickness, wherein the first thickness is greater than the second thickness, wherein the application of the external force The range corresponds to the first thickness and the second thickness, wherein the range of application of the external force is to enable expansion and contraction of the conductive fabric component between the first and second lengths.

Example 4 may include the subject matter of Example 2, wherein the first and second flexible substrates comprise at least one of the selected ones: an elastic fabric, an elastomer, or a polymer, wherein the application of the external force corresponds to The ratio of a thickness to the second thickness.

Example 5 can include the subject matter of Example 2, wherein the second flexible substrate The third length can be stretched, wherein the third length is at least a greater magnitude than the second length.

Example 6 can include the subject matter of Example 1, further comprising: an electrical contact disposed about an individual end of the electrically conductive fabric component to provide the electrically conductive fabric in response to the first and second lengths And reading the electrical parameter generated by the telescoping of the component; and the circuit is coupled to the electrical contacts for receiving and processing the reading of the electrical parameter.

Example 7 can include the subject matter of Example 6, wherein the electrical parameter comprises a resistor, wherein the circuit comprises: a resistor divider circuit coupled to the electrical contacts for responding to the conductive fabric component A voltage is generated by a change in resistance caused by the expansion and contraction; and an amplifier coupled to the resistor divider circuit for receiving the generated voltage and for providing the output voltage signal for echoing the expansion and contraction of the conductive fabric component.

Example 8 can include the subject matter of any of Examples 1-7, wherein the second length is greater than the first length by about 10% of the first length.

Example 9 can include the subject matter of Example 2, wherein the device is a wearable system having a body conforming to a body portion, wherein the second flexible substrate can be disposed on the conformal body of the wearable system.

Example 10 can include the subject matter of Example 9, wherein the conformal body comprises the second flexible substrate.

Example 11 can include the subject matter of Example 9, wherein the apparatus further comprises: one or more inertial measurement units (IMUs) disposed about the conformal body; and a digital node coupled to the one or more IMUs Communicatingly coupled to supply power to the one or more IMUs for receiving, The measurements provided by the IMU are converted, and processed, and used to provide the processed measurements to an external gathering device for further processing.

Example 12 can include the subject matter of Example 11, wherein the digital node is in communication with the one or more IMUs via an individual one or more wiring connections disposed in the conformal body of the wearable system Coupling.

Example 13 can include the subject matter of Example 11, further comprising one or more sensors disposed in the conformal body and communicatively coupled to the digital front end node for providing readings of the sensors To the digital node.

Example 14 can include the subject matter of Example 13, wherein the one or more sensors comprise at least one of the selected ones: an electromyogram (EMG) sensor, a temperature sensor, a sweat chemical sensor , or motion sensor.

Example 15 can include the subject matter of Example 14, wherein the wearable system comprises a wearable knee fastening strap, a wearable chest fastening strap, a wearable neck fastening strap, a wearable wrist fastening strap, or a wearable foot a fastening strip, wherein the outer gathering device comprises a mobile computing device.

Example 16 is a wearable system comprising: a telescoping sensor comprising a flexible substrate and a conductive fabric component, the conductive fabric component comprising a first length and attached to the flexible substrate, wherein Directly or indirectly applying an external force to the flexible substrate, the conductive fabric component is stretched between the first length and a second length greater than the first length, and based at least in part on the applied external force The electrical parameter is generated by the quantity; and the circuit is communicatively coupled to the telescopic sensor, wherein the circuit is configured to receive and process the reading of the electrical parameter provided by the telescopic sensor.

Example 17 can include the subject matter of Example 16, wherein the wearable system further comprises: a body conforming to a body part; one or more inertial measurement units (IMUs) disposed about the conformal body; And a digital node communicatively coupled to the circuit and the one or more IMUs for: supplying power to the one or more IMUs; receiving, converting, and processing measurements provided by the IMU, and by the scaling The electrical parameter provided by the sensor; and the processed measurements are provided to an external gathering device for further processing.

Example 18 can include the subject matter of Example 17, wherein the flexible substrate is a first flexible substrate, wherein the wearable system further comprises a second flexible substrate, wherein the first flexible substrate is attachably mounted to the first flexible substrate The second flexible substrate can be disposed on the conformal body of the wearable system.

Example 19 can include the subject matter of Example 17, wherein the digital node is in communication with the one or more IMUs via an individual one or more wiring connections disposed in the conformal body of the wearable system Coupling.

Example 20 can include the subject matter of Example 17, wherein the one or more wiring connections comprise a multi-wire bus bar for carrying a power signal, ground, and one or more signals corresponding to one or more IMUs.

Example 21 can include the subject matter of Example 17, further comprising one or more sensors disposed in the conformal body and communicatively coupled to the digital front end node for providing readings of the sensors To the digital node.

Example 22 is a method of manufacturing a wearable system, comprising: providing a digital node on a substrate, the substrate comprising a conformal version of the wearable system a telescopic sensor is disposed on the substrate, the telescopic sensor comprises a flexible substrate and a conductive fabric component, the conductive fabric component comprising a first length and attached to the flexible substrate, wherein In response to direct or indirect application of an external force to the flexible substrate, the conductive fabric component stretches between the first length and a second length that is greater than the first length, and at least in part based on the applied An electrical parameter is generated by the amount of external force; and a connection path is provided between the telescopic sensor and the digital node for communicatively coupling the digital node and the telescopic sensor, and the telescopic sensing is enabled Receive and process the electrical parameters provided by the device.

Example 23 can include the subject matter of Example 22, wherein the digital node is disposed on the substrate comprising mounting a printed circuit board (PCB) on the substrate, the PCB including at least one interface connector of the digital node, wherein the method further The method includes: providing one or more sensors on the substrate; and providing a connection path between the interface connector of the digital node and the one or more sensors for enabling the one or more The reception and processing of the measurements provided by the sensor.

Example 24 can include the subject matter of Example 23, further comprising: providing one or more inertial measurement units (IMUs) surrounding the conformal body; and providing a wiring connection path between the IMU and the PCB to enable The reception and processing of the measurements provided by the IMU.

Example 25 can include the subject matter of Example 23, wherein the digital node is disposed on the substrate to include a providing circuit for receiving and processing the electrical parameter provided by the telescopic sensor, wherein the providing comprises: setting the circuit In the PCB or in the digital node; and communicatively coupling the circuit And the digital node, wherein the telescopic sensor is disposed on the substrate including the conformal body: the telescopic sensor is disposed on the flexible substrate; and the flexible substrate is attachably mounted to include conformal On the substrate of the body.

Various operations are described as separate operations in a manner that is most beneficial to the subject matter of the claimed patent. However, the order of explanation should not be construed as implying that the operations must be sequential. Embodiments of the invention may be implemented as a system using any suitable hardware and/or software that is configured as desired.

While a few embodiments have been shown and described herein for the purposes of illustration, the embodiments of the invention It will fall within the scope of the invention. This application is intended to cover any adaptations or variations of the embodiments discussed herein. Therefore, it is apparent that the embodiments described herein are limited only by the scope of the claims and their equivalents.

Claims (25)

A wearable device comprising: a first flexible substrate having a first thickness; a second flexible substrate having a second thickness, wherein the second flexible substrate comprises a substantially triangular shape, wherein the first flexible substrate is Attachably mounted on the second flexible substrate, wherein the first thickness is greater than the second thickness; and a conductive fabric component comprising a first length and attached to the first flexible substrate Forming a telescopic sensor, wherein the conductive fabric component stretches between the first length and a second length greater than the first length in response to application of an external force to the second flexible substrate, and at least Generating an electrical parameter based in part on the amount of external force applied, wherein the first thickness of the first flexible substrate and the second thickness of the second flexible substrate define the electrical parameter Applying a measurement range of the external force, wherein the first and second thicknesses are selected to provide a relative thickness ratio to control the measurement range of the applied external force and prevent the conductive fabric component from extending beyond the second length, The triangular shape of the flexible substrate of the second acceleration control of the external force is applied to the measurement range. The wearable device of claim 1, wherein the increase in the ratio of the first thickness to the second thickness corresponds to an increase in the measurement range of the applied external force. The wearable device of claim 1, wherein the external force is applied to extend the conductive fabric component between the first and second lengths. The wearable device of claim 1, wherein the first and second flexible substrates comprise at least one of the selected ones: an elastic fabric, an elastomer, or a polymer, wherein the external force is applied The ratio of the first thickness to the second thickness should be the same. The wearable device of claim 1, wherein the second flexible substrate is extendable to a third length, wherein the third length is at least an order of magnitude greater than the second length. The wearable device of claim 1, further comprising: an electrical contact disposed around the individual end points of the conductive fabric component for providing the extension in response to the conductive fabric component And a reading of the electrical parameter generated between the second length and the circuit, coupled to the electrical contacts for receiving and processing the reading of the electrical parameter. The wearable device of claim 6, wherein the electrical parameter comprises a resistor, wherein the circuit comprises: a resistor divider circuit coupled to the electrical contacts for responding to the conductive fabric component A voltage is generated by the change in the resistance caused by the extension; and an amplifier coupled to the resistor divider circuit for receiving the generated voltage and for providing the output voltage for returning to the extension of the conductive fabric component signal. The wearable device of claim 1, wherein the second length is greater than the first length by about 10% of the first length. The wearable device of claim 1, wherein the device is a wearable system having a body conforming to a body part, wherein the second flexible substrate is disposed on the conformal body of the wearable system on. The wearable device of claim 1, wherein the conformal body comprises the second flexible substrate. The wearable device of claim 1, further comprising: one or more inertial measurement units (IMUs) disposed around the conformal body; and a digital node communicating with the one or more IMUs Groundly coupled to supply power to the one or more IMUs for receiving, converting, and processing measurements provided by the IMU, and for providing the processed measurements to an external gathering device for further processing Use. The wearable device of claim 11, wherein the digital node is connected to the one or more IMUs via one or more wirings disposed in the conformal body of the wearable system Communication is coupled. The wearable device of claim 11, further comprising one or more sensors disposed in the conformal body and communicatively coupled to the digital front end node for providing the sensors The reading is taken to the digital node. The wearable device of claim 13, wherein the one or more sensors comprise at least one of the selected ones: an electromyogram (EMG) sensor, a temperature sensor, and a sweat chemistry Detector, or sense of movement Detector. The wearable device of claim 9, wherein the wearable system comprises a wearable knee fastening tape, a wearable chest fastening tape, a wearable neck fastening tape, a wearable wrist fastening tape, or a wearable A foot fastening strap, wherein the outer gathering device comprises a mobile computing device. A wearable system comprising: a stretch sensor comprising: a first flexible substrate having a first thickness; and a conductive fabric component comprising a first length and attached to the first a second flexible substrate having a second thickness, wherein the second flexible substrate comprises a substantially triangular shape, wherein the first flexible substrate is adhesively mounted on the second flexible substrate, Wherein the first thickness is greater than the second thickness; wherein the conductive fabric component is in the first length and a second length greater than the first length in response to application of an external force to the second flexible substrate Stretching between, and at least in part, generating an electrical parameter based on the amount of external force applied, wherein the first thickness of the first flexible substrate and the second thickness of the second flexible substrate are defined by the electrical The measurement range of the applied external force indicated by the property parameter, wherein the first and second thicknesses are selected to provide a relative thickness ratio to control the measurement range of the applied external force and prevent the conductive fabric component from stretching That the second length, wherein the triangular shape of the flexible substrate of the second acceleration control of the external force is applied to the measurement range; and A circuit is communicatively coupled to the stretch sensor, wherein the circuit is operative to receive and process a reading of the electrical parameter provided by the stretch sensor. The wearable system of claim 16, wherein the wearable system further comprises: a body conforming to a body part; one or more inertial measurement units (IMUs) surrounding the conformal body And a digital node communicatively coupled to the circuit and the one or more IMUs for: supplying power to the one or more IMUs; receiving, converting, and processing measurements provided by the IMU, and The electrical parameters provided by the stretch sensor; and the processed measurements are provided to an external gathering device for further processing. The wearable system of claim 17, wherein the second flexible substrate is disposed on the conformal body of the wearable system, or the conformal body comprises the second flexible substrate. The wearable system of claim 17, wherein the digital node is connected to the one or more IMUs via one or more wirings disposed in the conformal body of the wearable system Communication is coupled. The wearable system of claim 17, wherein the one or more wiring connections comprise a multi-wire bus bar for carrying a power signal, Ground, and one or more signals corresponding to one or more IMUs. The wearable system of claim 17, further comprising one or more sensors disposed in the conformal body and communicatively coupled to the digital front end node for providing the sensors The reading is taken to the digital node. A manufacturing method of a wearable system, comprising: providing a first flexible substrate having a first thickness; attaching a conductive fabric component including a first length to the first flexible substrate to form a telescopic sensor; Attaching the telescopic sensor to a second flexible substrate having a second thickness and a substantially triangular shape, wherein the first thickness is greater than the second thickness, wherein the second flexible substrate comprises a portion of the second flexible substrate a body of the shape; wherein the conductive fabric component extends between the first length and a second length greater than the first length in response to application of an external force to the second flexible substrate, and at least partially Generating an electrical parameter based on the amount of the applied external force, wherein providing the first and second flexible substrates includes selecting the first and second thicknesses of the first and second flexible substrates to provide a relative thickness ratio Controlling the measurement range of the applied external force and preventing the conductive fabric component from extending beyond the second length, wherein the shape of the triangle of the second flexible substrate facilitates the application of the external force Controlling an amount ranging; digital disposed on the conformal node of the body; and Providing a connection path between the extension sensor and the digital node for communicatively coupling the digital node and the extension sensor to enable reception of the electrical parameter provided by the extension sensor And processing. The method of claim 22, wherein the digital node is disposed on the conformal body to include a printed circuit board (PCB) on the conformal body, the PCB including at least one interface connection to the digital node The method further includes: providing one or more sensors on the conformal body; and providing a connection path between the interface connector of the digital node and the one or more sensors Used to enable reception and processing of measurements provided by the one or more sensors. The method of claim 23, further comprising: providing one or more inertial measurement units (IMUs) surrounding the conformal body; and providing a wiring connection path between the IMU and the PCB to enable The reception and processing of the measurements provided by the IMU. The method of claim 23, wherein the digital node is disposed on the conformal body to include a providing circuit for receiving and processing a reading of the electrical parameter provided by the stretching sensor, wherein the providing The method includes: setting the circuit in the PCB or the digital node; and communicatively coupling the circuit and the digital node.